Porous gold nanodisks with multiple internal hot spots

다국어 초록 (Multilingual Abstract)

<P>For increasing the number of internal hot spots in the individual plasmonic nanoparticles, porous Au nanostructures were synthesized by a hybrid approach combining a physical process, which defined the overall shapes and dimensions of the nanostructures, and a chemical process, which incorporated nanopores inside the patterned nanostructures. This approach allows us to synthesize lithographically designed Au nanodisks containing numerous internal Raman hot spots in the form of nanopores. The increased number of hot spots successfully improved SERS intensity, and this experimental result was further elucidated by numerical electromagnetic simulations. The highly improved and homogeneous SERS intensities illustrate the great potential of the porous plasmonic nanodisks as a sensitive molecular imaging agent.</P>

<P>Graphic Abstract</P><P>Porous plasmonic nanostructures with enhanced SERS activity can be synthesized by incorporating chemically formed nanopores into physically fabricated nanostructures.
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